An Investigation of the Effectiveness of a Training Program to Improve

Multiple Choice

An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey. To compare the differences, they computed (post-training survey score - pre-training survey score) . Seven customers were randomly selected and completed both surveys. The results follow: For a 0.05 significance level, determine the critical value and the calculated value of the test statistic?

A) 1.943; -2.542
B) 1.895; 2.542
C) 1.645; 2.447
D) 2.447; 1.943